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- W2028685931 abstract "The discrete fractional Fourier transform (FrFT) has been suggested to enhance performance over DFT-based multicarrier systems when transmitting over doubly-dispersive channels. In this paper, we propose a novel low-complexity equaliser for inter-symbol and inter-carrier interference arising in such multicarrier transmission system. Due to a lower spreading in the FrFT-domain compared to the DFTchannel matrix as compared to the DFT domain, the equaliser can approximate the fractional-domain channel matrix by a band matrix. Further, we utilise the least squares minres (LSMR) algorithm in the calculation of the equalisation, which exhibits attractive numerical properties and low complexity. Simulation results demonstrate the superior performance of the proposed LSMR equaliser over benchmark schemes." @default.
- W2028685931 created "2016-06-24" @default.
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- W2028685931 date "2011-12-01" @default.
- W2028685931 modified "2023-09-25" @default.
- W2028685931 title "Low-complexity LSMR equalisation of FrFT-based multicarrier systems in doubly dispersive channels" @default.
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- W2028685931 doi "https://doi.org/10.1109/isspit.2011.6151606" @default.
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